30 CASE STUDY
factory produced elements incorporating insulated roof panels, spandrel wall panels, dormers, roof windows, dummy chimneys, soffits and fascias – all deliv- ered to site and craned into place, with the roof then just requiring tiling. “At a time when skills shortage and
tight margins are commonplace across the sector, the offsite fabrication of the roofs at Plumb Park provided TaylorWimpey with huge benefits in terms of health and safety, speed of construction and quality control,” says Kevin Sherlock, managing director at Smartroof. He adds: “To create the curved structure would have been complicated to achieve onsite, using traditional roofing methods, however we were able to manufacture this complex configuration offsite.” Sherlock estimates that, for this bespoke design, the system saved up to eight weeks installation time when compared to traditional onsite methods of roof construction. In addition, hips, valleys and other roof details could all be designed and manufactured as features within the system.
“THE END RESULTWAS IMPRESSIVE; THE ROOMIN ROOF SYSTEMDELIVERED ON ALL FRONTS”
WWW.HBDONLINE.CO.UK
THE BENEFITS OFMODULAR There has been a push recently to increase the use of offsite fabrication and systems across the sector in a push to encourage greater efficiency and higher productivity. Systems such as structurally insulated panels (SIPs) and pre engineered insulated roof systems as the ones used at Plumb Park are becoming ever more common. Discussing the success of MMC’s (modern methods of construction) use in this project, Sherlock believes more housebuilders will need to embrace newer and faster methods of construction in the near future, “which in turn will enable them to comply with more stringent energy efficiency demands and help the UK meet its net zero targets.” Sherlock says: “The industry is beginning to rethink the way it designs,
engineers and constructs buildings, and is helping to deliver projects quicker, better, and with a greater degree of precision.” Among the benefits the approach brought to this project, he notes the sustainability credentials of offsite construction, with waste being easier to manage at the development as factory production provides a greater control of material usage. “This is compounded by the core component of this particular system being timber,” adds Sherlock, “which itself is sustainable.” Further benefits of the technology’s use
in this project included less time spent working at height and erecting scaffolding in confined spaces for site operatives, reduced vehicle movements onsite, and less manual handling during installation. In addition, the risk associated with failing blockwork from exposed gable walls was eliminated, thereby making the construction process safer.
DELIVERY With the challenging crescent now complete, and the development expected to reach completion by the end of 2022, TaylorWimpey hails the Plumb Park as a successful example of the integration of modular construction. As well as enabling the team to reduce build costs, and health and safety risks onsite, it has reportedly achieved higher thermal efficiency and build quality. Dale Saunders, technical compliance director at the housebuilder, says that it “not only helped TaylorWimpey simplify the build process,” but enabled “innovative solutions” that made the project possible. Looking forward, Saunders says that
TaylorWimpey will continue to work to review and consider how the approach can be used to surmount obstacles on schemes, “including those challenges that will be faced through the upcoming changes to be introduced through Part L of the Building Regulations.” g
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